Table 4
Observational parametersa of OB stars around Dolidze 25.
| Name | U | B | V | J | H | KS | Spectral |
| type | |||||||
|
|
|||||||
| TYC 147-2024-1 | − | 12.5 | 12.5 | 11.86 | 11.81 | 11.79 | B1.5 V+ |
| UCAC4 452-021858 | − | − | − | 12.01 | 11.92 | 11.89 | B1.5 Vn |
| HD 292167 | 9.10 | 9.69 | 9.26 | 8.21 | 8.14 | 7.99 | O8.5 Ib((f)) |
| HD 48691 | 7.12 | 7.92 | 7.83 | 7.67 | 7.73 | 7.73 | B0.5 IV |
| HD 48807 | 6.83 | 7.23 | 7.02 | 6.49 | 6.43 | 6.35 | B8 Ib |
| HD 292090 | 9.51 | 10.18 | 9.87 | 9.16 | 9.08 | 9.02 | O8 IV |
| HD 292392 | 9.82 | 10.34 | 10.01 | 9.29 | 9.21 | 9.14 | O8.5 V |
| HD 292398 | 9.84 | 10.13 | 9.92 | 9.55 | 9.54 | 9.52 | B4 IV-V |
| HD 292163 | − | 11.3 | 11.0 | 10.47 | 10.42 | 10.40 | O8 Vz + B |
| HD 292164 | − | 11.1 | 10.7 | 9.95 | 9.87 | 9.83 | B1.5 II-III |
Notes.
All JHKS photometry is from 2MASS. Precision UBV photometry exists for HD 292167, HD 292090 (from Hiltner & Johnson 1956), HD 48691 (from Crampton 1971), HD 292392, and HD 292398 (from Lunel & Garnier 1980). For other sources, BV photometry is from UCAC4. The magnitudes for TYC 147-2024-1 have huge formal errors of 0.99 mag.
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